Note

The IPs listed above do not cover the actual domain https://insights.hotjar.com. This is due to it being configured on an Amazon ELB, Elastic Load Balancer, which means there are multiple non-static IPs assigned to it. If you need to whitelist this as well, the only option would be to whitelist the domains *.hotjar.com

If you need to, you can see a list of all Amazon IPs in this json file, however it is important to know that these IPs change quite regularly.